561055000051 has 64 divisors (see below), whose sum is σ = 733711104000. Its totient is φ = 416606976000.

The previous prime is 561055000043. The next prime is 561055000061. The reversal of 561055000051 is 150000550165.

It is a cyclic number.

It is not a de Polignac number, because 561055000051 - 2³ = 561055000043 is a prime.

It is a super-2 number, since 2×561055000051² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561054999983 and 561055000019.

It is not an unprimeable number, because it can be changed into a prime (561055000001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103303306 + ... + 103308736.

It is an arithmetic number, because the mean of its divisors is an integer number (11464236000).

Almost surely, 2^561055000051 is an apocalyptic number.

561055000051 is a deficient number, since it is larger than the sum of its proper divisors (172656103949).

561055000051 is a wasteful number, since it uses less digits than its factorization.

561055000051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 561055000051 in words is "five hundred sixty-one billion, fifty-five million, fifty-one", and thus it is an aban number.